<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        span{
            background-color: blue;
            color: crimson;
        }
    </style>
    <title>Document</title>
</head>
<body>
    <!-- 快速生成测试文本
        lorem+数字+tab
        lorem+tab
    -->
        <!-- 容器标签div
            双标签
            占一行 
        -->
        <div>
            Lorem ipsum dolor sit amet consectetur, adipisicing elit. Dolor voluptatem eligendi sit laboriosam tenetur perferendis natus ullam velit reprehenderit porro recusandae ipsa, repellat beatae illum. Fugit sapiente delectus veritatis nobis?
        </div>
        <!-- 容器组件span
            双标签，给了之后不会有任何外观的改变
            除非添加样式 
        -->
        <div>
        Lorem ipsum <span>dolor</span> sit amet consectetur, adipisicing elit. Dolor voluptatem eligendi sit laboriosam tenetur perferendis natus ullam velit reprehenderit porro recusandae ipsa, repellat beatae illum. Fugit sapiente delectus veritatis nobis?
        </div>
</body>
</html>